I have read a lot of start-up books as an entrepreneur and after reading this one the question ringing in my ear is - 'why did I wait so long to read this'. The logic is so strong and the messages integrate the many themes of design thinking, lean, agile, up to the level of building a business that it is a must read and an inevitable bible for entrepreneurship in the 21st century.

ok information, but the read is boring, and the way it is presented is dry. Its kind of more on the textbook side with dry consulting war stories without a lot of expression and stimulation. But the thoughts and info are helpful, just difficult to stay engaged with.

Worth reading if you are owning a business or work in a business. Gets your head starting to think on how to as quickly as possible test hypotheses and test asumptions when improving products, services or looking to innovate.